– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Fri 26 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Fri 26 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Fri 26 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -4°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Mild temperatures (max 9°C on Wed morning, min 1°C on Mon night). Wind will be generally light. | ||||||||||||||||
Fri 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | | | | |  |  | | | | |
light snow | snow shwrs | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | some clouds | light rain | light rain | light rain | cloudy | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | 0.2 | 0.3 | 0.3 | — | — | |
max °C | 1 | -1 | 0 | -1 | -2 | 1 | 1 | 1 | 4 | 3 | 2 | 6 | 5 | 7 | 9 | 8 | 7 |
min °C | 0 | -2 | -1 | -1 | -4 | 0 | 0 | 1 | 3 | 2 | 1 | 5 | 5 | 6 | 8 | 8 | 7 |
-3 | -2 | -1 | -1 | -4 | 0 | 0 | 1 | 3 | 2 | 1 | 5 | 5 | 6 | 8 | 8 | 6 | |
600 | 300 | 300 | 350 | 0 | 450 | 800 | 700 | 1350 | 1750 | 2050 | 2300 | 2250 | 2300 | 2650 | 2750 | 2750 | |
Cloud base (m) | 550 | 550 | 600 | 600 | 650 | 650 | 650 | 650 | 700 | 650 | 950 | 2100 | 750 | 900 | 700 | 650 | 600 |
 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | 4:16 | — | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -4°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Mild temperatures (max 9°C on Wed morning, min 1°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.